! HbvbHb7_0 -> ["HbvbHb7_1", "BJHvsdn_1", "HbvbHb7_2"] ; - str words[][] - becose not empty

HbvbHb7_1 -> ["Hello", "World"]
BJHvsdn_1 -> ["Hello", "Friend"]
HbvbHb7_2 -> ["Hello", "Hi"]

HbvbHb7_3 -> [""]

INFO:
link_line -> ['all words from `line` line in `link` file']
